231288283 has 8 divisors (see below), whose sum is σ = 234706896. Its totient is φ = 227892000.

The previous prime is 231288223. The next prime is 231288293. The reversal of 231288283 is 382882132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231288283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231288223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15885 + ... + 26737.

It is an arithmetic number, because the mean of its divisors is an integer number (29338362).

Almost surely, 2^231288283 is an apocalyptic number.

231288283 is a deficient number, since it is larger than the sum of its proper divisors (3418613).

231288283 is a wasteful number, since it uses less digits than its factorization.

231288283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165.

The product of its digits is 36864, while the sum is 37.

The square root of 231288283 is about 15208.1650109407. The cubic root of 231288283 is about 613.8343823984.

The spelling of 231288283 in words is "two hundred thirty-one million, two hundred eighty-eight thousand, two hundred eighty-three".